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Mark Gillespie

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  1. On 1/23/2020 at 11:01 AM, Rick Kempf said:

    No one knows when the AQ will be released. Whatever Fisher’s plans actually are, they have not disclosed and information about the ongoing certification testing means that even Fisher Marketing may not be able to give a firm date.

    I am personally satisfied that the AQ will outperform the TDIBH for most wet salt beach applications, but it will certainly cost significantly more.

    Patience is often rewarded. When the AQ reaches market, and if it indeed outperforms the TDIBH, there may be an opportunity to pick up an nice used TDIBH at a bargain and you can then choose based on how much $ vs. how much performance for YOUR own uses.

     

    Yes I remember when the expensive Minelab gold machines hit the market, a few months later used units could be bought with huge discounts.

    That being said, I'll wait until after the Terra version hits the market and see how quickly the used units hit the market.

     

  2. On 1/22/2020 at 10:44 PM, Steve Herschbach said:

    Air tests are not useless, they simply have to be used wisely. There are those who say detectors can detect deeper in the ground than in the air, and I'd not argue this is impossible in rare situations. However, you can generally assume that testing PI to PI or VLF to VLF you are not going to see detectors exceed what they do in the air under actual field conditions. Air tests are a good way to get theoretical maximum depths under very mild ground conditions.

    Where people go wrong is in comparing PI detectors to VLF detectors in air tests. VLFs by nature air test great, but also by nature lose the most depth in the ground. PI detectors do not air test so great, but lose depth far less quickly than VLFs in the ground. So air testing PI to VLF is deceptive - keep it apples to apples.

    Long story short I would not air test a big box TDI Pulsescan against a TDI SL of any version, and expect that in the ground the results will flip. In this case we are talking a 14.4V Pulsescan with a 12" round Dual Field coil versus a 12V TDI SL with 8" x 12"  Dual Field. If you used a higher power battery on the TDI SL and the same size coil it might have a fighting chance on relic type targets that Joe is after, but the HI-Q coil is more a nugget hunting coil so leans better performance on small stuff. Between the smaller coil and lower power battery what Joe is reporting is exactly what I would expect.

    Very true Steve, you can't compare a PI with a VLF.  Two totally different technologies, two totally different test results.

    The areas I hunt with my TDI will all but completely shutdown the very best VLF machines.

     

  3. Had the great pleasure to chat with Jerry *** aka tinfoil.  For those who might not know this guy, back in the day, 20+ years ago he was one of the treasure hunters who wrote a lot on finding gold.  He wanted me to mention that he and Pat are doing good.  That he doesn't get to hunt anymore but remembers posting many years ago.  He says hi to Steve too.

     

  4. Congratulations on the finds.

    I've only had the opportunity of hunting cuts a couple times in my life and found a trove of goodies on the hard pan in the cuts.  We usually go to Holden Beach NC where they're continually dredging sand and building the beach back up because of where it washes out.  That being said, extreme low tide is my only chance to hunt the old stuff and that is with my TDI.  

    Now back to your silver item.  Years ago I found a similar item on the beach, in one of those cuts mentioned.  It was coal black but rang up as a penny/dime on  my Fisher F75.  I tried every possible solution to dissolve the item.  After several attempts I finally got the faint image of a Mercury dime.  The only thing I didn't try was electrolysis. I surmise there was some kind of chemical bonding between the silver and salt water that caused the build up of black material on the dime.

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